Williams, Neville, author
Simon & Schuster , 1994
Buku Referensi
Williams, Neville, author
Simon & Schuster, 1994
Buku Referensi
Storey, R.L., author
Simon & Schuster , 1994
Buku Referensi
Auboyer, Jeannine
Wiedenfeld and Nicolson, 1961
Buku Teks
Caldwell, Wallace Everett, author
Holt, Rinehart and Winston, 1963
Buku Teks